Secondary vibration stirring equipment for paving asphalt pavement
By designing scraping components, heating mechanisms and drive components in asphalt paving equipment, the problems of uneven mixing and insufficient density in traditional equipment are solved, and more efficient asphalt stirring and longer service life are achieved.
Patent Information
- Application Number
- CN202421349897.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-14
AI Technical Summary
Traditional asphalt paving equipment has problems such as uneven mixing and insufficient density during the stirring process, which affects the service life and performance of asphalt pavement.
A secondary vibration mixing equipment for asphalt pavement is designed. The scraping assembly and scraping plate are used to scrape the asphalt on the inner wall of the stirring barrel, and a heating mechanism is set to heat the stirring barrel, and the drive assembly drives the stirring spindle to rotate, leading multiple groups of stirring leaves to stir the asphalt.
By scraping off the asphalt, it prevents it from adhering to the inner wall of the stirring barrel, ensuring the stirring effect; the heating mechanism heats the asphalt evenly to prevent oxidative aging caused by excessive temperature; the effective stirring of the stirring leaves improves the density and service life of the asphalt mixture.
Smart Images
Figure CN222666461U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of asphalt processing, and in particular to a secondary vibration mixing device for asphalt pavement paving. Background Art
[0002] In the process of asphalt pavement construction, mixing equipment is usually used to ensure the uniformity and density of the asphalt mixture. However, traditional mixing equipment often has problems such as uneven mixing and insufficient density during the mixing process, which affects the service life and performance of the asphalt pavement.
[0003] In the patent document with the published announcement number CN216970705U, a secondary vibration mixing equipment for asphalt pavement paving is provided, including an outer shell, an inner shell, a mixing device, a discharge base, multiple knocking devices and a discharge pipe; the outer shell and the inner shell are installed on the top of the discharge base, and the inner shell is located inside the outer shell, and an elastic rubber is arranged between the outer shell and the inner shell, so that the inner shell is offset under the extrusion of the knocking device and accumulates force on the elastic rubber.
[0004] The above device can cause the inner shell to deviate and vibrate according to the rotation change through the protrusions and movable heads, driving the asphalt material to shake, and increasing the stirring force of the asphalt material by setting multiple positioning shafts and stirring blades. However, the above method lacks monitoring of the internal temperature of the asphalt, which often leads to problems such as excessive temperature and oxidation aging of the asphalt mixture. In addition, the remaining asphalt during the paving process will be deposited at the bottom of the mixing barrel and adhere to the inner wall of the mixing barrel, which will greatly reduce the asphalt stirring effect, which is also not conducive to the performance and service life of the asphalt pavement. Utility Model Content
[0005] The present application proposes a secondary vibration mixing device for asphalt pavement paving to solve the problems raised in the above-mentioned background technology.
[0006] In order to achieve the above purpose, this application adopts the following technical solutions:
[0007] A secondary vibration mixing equipment for asphalt pavement paving comprises an outer shell and a mixing barrel, the mixing barrel is arranged on the inner side of the outer shell, a heating mechanism is arranged between the mixing barrel and the outer shell, the bottom of the mixing barrel is funnel-shaped, a mounting cavity is arranged on the top of the mixing barrel, a mixing main shaft is arranged through the top of the outer shell, the upper end of the mixing main shaft extends into the mounting cavity and is fixedly installed with a driving gear, the lower end of the mixing main shaft extends to the mixing barrel and is fixedly installed with an auger, the upper end of the mixing main shaft is fixedly installed with a driving gear, both sides of the driving gear are meshed and connected with a group of driven gears, a driven shaft is fixedly installed at the axis center of the driven gear, a plurality of groups of mixing blades are fixedly installed on the outer wall of the driven shaft along the circumferential direction, scraper assemblies are arranged on the upper and lower ends of the mixing blades, a driving assembly is fixedly installed on the outer side of one side of the outer shell, and a control panel is arranged on the other side, and vibrators are arranged on both sides of the bottom of the mixing barrel.
[0008] As a preferred embodiment, the scraper assembly includes a plurality of fixed rods fixedly installed on the outer wall of the driven shaft along the circumferential direction, a movable head is provided on the outer sliding sleeve of the fixed rod, a movable groove is provided at the end of the fixed rod, an integrally connected movable rod is provided on the inner side of the movable head, a spring is fixedly connected between the movable rod and the inner wall of the movable groove, and a side wall scraper is fixedly connected to the end of the movable head away from the fixed rod.
[0009] By adopting the above technical solution, the scraper assembly is responsible for scraping the asphalt on the inner wall of the mixing barrel to prevent the asphalt from adhering to the inner wall of the mixing barrel. When the side wall scraper contacts the inner wall of the mixing barrel, under the action of the spring, the side wall scraper is always in close contact with the inner wall of the mixing barrel, thereby ensuring the scraping effect of the side wall scraper.
[0010] As a preferred embodiment, a feed port is fixedly mounted on the upper end of an outer wall of one side of the shell, a lower end of the feed port passes through the shell and is connected to the mixing barrel, and a discharge port is provided at the bottom of the mixing barrel.
[0011] By adopting the above technical solution, the feed port is used to feed the mixing barrel, and the discharge port is used to discharge asphalt.
[0012] As a preferred embodiment, the heating mechanism includes an electric heating tube and a temperature sensor evenly arranged around the outside of the mixing barrel, and the electric heating tube and the temperature sensor are both electrically connected to the control panel.
[0013] By adopting the above technical solution, the heating mechanism is responsible for heating the mixing barrel, and the electric heating tube is evenly surrounded by the outside of the mixing barrel, which helps the asphalt inside the mixing barrel to be heated evenly. The temperature inside the mixing barrel is monitored by the temperature sensor, and the heating time and temperature can be controlled and adjusted through the control panel.
[0014] As a preferred embodiment, a scraper plate is fixedly installed at the bottom of the auger, and the shape of the scraper plate is adapted to the bottom of the mixing barrel.
[0015] By adopting the above technical solution, the auger is responsible for transporting the asphalt at the bottom of the inner side of the mixing barrel upwards and stirring it through multiple sets of stirring blades to prevent asphalt deposition.
[0016] As a preferred embodiment, the driving assembly includes a driving motor, the output shaft of the driving motor is fixedly mounted with a rotating shaft, the top of the rotating shaft is fixedly mounted with a first pulley, the top of the stirring main shaft is fixedly mounted with a second pulley, and the second pulley is connected to the first pulley via a belt drive.
[0017] By adopting the above technical solution, the driving motor is responsible for driving the rotating shaft to rotate, the rotating shaft then drives the first pulley to rotate, the first pulley then drives the second pulley to rotate through the belt, thereby driving the stirring main shaft to rotate.
[0018] Beneficial effects of this application:
[0019] The secondary vibration stirring equipment for asphalt pavement paving is provided with a scraper assembly and a scraper plate. The scraper assembly is responsible for scraping the asphalt on the inner wall of the mixing barrel to prevent the asphalt from adhering to the inner wall of the mixing barrel. When the side wall scraper contacts the inner wall of the mixing barrel, the side wall scraper is always in close contact with the inner wall of the mixing barrel under the action of the spring, thereby ensuring the scraping effect of the side wall scraper. The mixing barrel is heated by a heating mechanism, and the electric heating tube is evenly surrounded by the outer side of the mixing barrel, which helps the asphalt inside the mixing barrel to be heated evenly. The temperature inside the mixing barrel is monitored by a temperature sensor, and the heating time and temperature can be controlled and adjusted through a control panel. The driving assembly drives the stirring main shaft to rotate, and the stirring main shaft then drives multiple driven shafts to rotate through the engagement of the driving gear and the driven gear, and the driven shaft then drives multiple groups of stirring blades to stir the asphalt. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a front cross-sectional view of the present application;
[0021] Figure 2 A top cross-sectional view of the driving gear and the driven gear of the present application;
[0022] Figure 3 For this application Figure 1 A is an enlarged structural diagram;
[0023] Figure 4 This is a top view of the scraper assembly of the present application.
[0024] Numbers in the figure: 1. Shell; 2. Mixing barrel; 3. Heating mechanism; 31. Electric heating tube; 32. Temperature sensor; 4. Mounting chamber; 5. Mixing spindle; 6. Driving gear; 7. Auger; 8. Scraper plate; 9. Driven gear; 10. Driven shaft; 11. Mixing blade; 12. Scraper assembly; 121. Fixed rod; 122. Movable head; 123. Movable groove; 124. Movable rod; 125. Spring; 126. Side wall scraper; 13. Driving assembly; 131. Driving motor; 132. Rotating shaft; 133. First pulley; 134. Second pulley; 14. Control panel; 15. Vibrator; 16. Feed inlet; 17. Discharge outlet. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.
[0026] Reference Figure 1 , 2 A secondary vibration mixing equipment for asphalt pavement paving comprises a shell 1 and a mixing barrel 2, wherein the mixing barrel 2 is arranged on the inner side of the shell 1, a heating mechanism 3 is arranged between the mixing barrel 2 and the shell 1, the bottom of the mixing barrel 2 is funnel-shaped, a mounting cavity 4 is arranged on the top of the mixing barrel 2, a mixing main shaft 5 is arranged through the top of the shell 1, the upper end of the mixing main shaft 5 extends into the mounting cavity 4 and is fixedly installed with a driving gear 6, the lower end of the mixing main shaft 5 extends to the mixing barrel 2 and is fixedly installed with an auger 7, a group of driven gears 9 are meshed and connected on both sides of the driving gear 6, a driven shaft 10 is fixedly installed at the axis of the driven gear 9, a plurality of groups of stirring blades 11 are fixedly installed on the outer wall of the driven shaft 10 along the circumferential direction, a scraper assembly 12 is arranged at the upper and lower ends of the stirring blade 11, a driving assembly 13 is fixedly installed on the outer side of one side of the shell 1, and a control panel 14 is arranged on the other side, and vibrators 15 are arranged on both sides of the bottom of the mixing barrel 2.
[0027] Reference Figure 1 , Figure 3 and Figure 4The scraper assembly 12 includes a plurality of fixed rods 121 fixedly installed on the outer wall of the driven shaft 10 along the circumferential direction, a movable head 122 is provided on the outer sliding sleeve of the fixed rod 121, a movable groove 123 is provided at the end of the fixed rod 121, an integral movable rod 124 is provided on the inner side of the movable head 122, a spring 125 is fixedly connected between the movable rod 124 and the inner wall of the movable groove 123, and a side wall scraper 126 is fixedly connected to the end of the movable head 122 away from the fixed rod. The scraper assembly 12 is responsible for scraping off the asphalt on the inner wall of the mixing barrel 2 to prevent the asphalt from adhering to the inner wall of the mixing barrel 2. When the side wall scraper 126 contacts the inner wall of the mixing barrel, the movable head 122 is squeezed, and the movable head 122 then drives the movable rod 124 to move inwardly of the movable groove 123. At this time, the spring 125 is in a compressed state. Under the action of the spring 125, the side wall scraper 126 is always in close contact with the inner wall of the mixing barrel 2, thereby ensuring the scraping effect of the side wall scraper 126.
[0028] Reference Figure 3 A feed port 16 is fixedly mounted on the upper end of the outer wall of one side of the housing 1, and the lower end of the feed port 16 passes through the housing 1 and is connected to the mixing barrel 2. A discharge port 17 is provided at the bottom of the mixing barrel 2. The feed port 16 is used to feed the mixing barrel 2, and the discharge port 17 is used to feed asphalt.
[0029] Reference Figure 1 The heating mechanism 3 includes an electric heating tube 31 and a temperature sensor 32 evenly arranged around the outside of the mixing barrel 2. The electric heating tube 31 and the temperature sensor 32 are both electrically connected to the control panel 14. The heating mechanism 3 is responsible for heating the mixing barrel 2. The electric heating tube 31 evenly surrounds the outside of the mixing barrel 2, which helps the asphalt inside the mixing barrel 2 to be heated evenly. The temperature inside the mixing barrel 2 is monitored by the temperature sensor 32, and the heating time and temperature can be controlled and adjusted through the control panel 14.
[0030] Reference Figure 1 A scraper plate 8 is fixedly mounted at the bottom of the auger 7, and the shape of the scraper plate 8 matches the bottom of the mixing barrel 2. The stirring main shaft 5 drives the auger 7 to work, and the auger 7 is responsible for conveying the asphalt at the bottom of the mixing barrel 2 upward and stirring it through the stirring blades 11 to prevent asphalt deposition.
[0031] Reference Figure 1The driving assembly 13 includes a driving motor 131, a rotating shaft 132 is fixedly mounted on the output shaft of the driving motor 131, a first belt pulley 133 is fixedly mounted on the top of the rotating shaft 132, a second belt pulley 134 is fixedly mounted on the top of the stirring main shaft 5, and the second belt pulley 134 is connected to the first belt pulley 133 through a belt transmission. The driving motor 131 is responsible for driving the rotating shaft 132 to rotate, the rotating shaft 132 then drives the first belt pulley 133 to rotate, and the first belt pulley 133 then drives the second belt pulley 134 to rotate through a belt, thereby driving the stirring main shaft 5 to rotate.
[0032] Working principle: Asphalt enters the mixing barrel 2 through the feed port 16. When working, the driving motor 131 drives the rotating shaft 132 to rotate, and the rotating shaft 132 then drives the first pulley 133 to rotate. The first pulley 133 then drives the second pulley 134 to rotate through the belt, thereby driving the mixing main shaft 5 to rotate. The mixing main shaft 5 then meshes with the driven gear 9 through the driving gear 6 to drive multiple driven shafts 10 to rotate, and the driven shaft 10 then drives multiple groups of stirring blades 11 to stir the asphalt;
[0033] The asphalt on the inner wall of the mixing barrel 2 is scraped off by the scraper assembly 12 to prevent the asphalt from adhering to the inner wall of the mixing barrel 2. When the side wall scraper 126 contacts the inner wall of the mixing barrel, the movable head 122 is squeezed, and the movable head 122 then drives the movable rod 124 to move inwardly of the movable groove 123. At this time, the spring 125 is in a stressed compressed state. Under the action of the spring 125, the side wall scraper 126 is always in close contact with the inner wall of the mixing barrel 2, thereby ensuring the scraping effect of the side wall scraper 126 and preventing the asphalt from adhering to the inner wall of the mixing barrel 2, resulting in poor mixing effect; the electric heating tube 31 is evenly surrounded by the outer side of the mixing barrel 2, which helps the asphalt inside the mixing barrel 2 to be heated evenly. The temperature inside the mixing barrel 2 is monitored by the temperature sensor 32, and the heating time and temperature can be controlled and adjusted through the control panel 14 to prevent the asphalt mixture from being overheated, oxidative aging, and other problems, which is beneficial to extending the performance and service life of the asphalt pavement.
[0034] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and utility model concept of the present application, which should be covered by the protection scope of the present application.
Claims
1. A secondary vibration mixing device for asphalt pavement paving, comprising a housing (1) and a mixing barrel (2), characterized in that: The stirring barrel (2) is arranged on the inner side of the outer shell (1), a heating mechanism (3) is arranged between the stirring barrel (2) and the outer shell (1), the bottom of the stirring barrel (2) is funnel-shaped, a mounting cavity (4) is arranged on the top of the stirring barrel (2), a stirring main shaft (5) is arranged through the top of the outer shell (1), the upper end of the stirring main shaft (5) extends into the mounting cavity (4) and is fixedly mounted with a driving gear (6), the lower end of the stirring main shaft (5) extends to the stirring barrel (2) and is fixedly mounted with an auger (7), the main shaft (5) is arranged to move the stirring barrel (2) and the stirring barrel (2) is fixedly mounted with a driving gear (6), and the stirring main shaft (5) is arranged to move the stirring barrel (2) and the stirring barrel (2) is fixedly mounted with a driving gear (6). A group of driven gears (9) are meshedly connected on both sides of the driven gear (6); a driven shaft (10) is fixedly mounted at the axis of the driven gear (9); a plurality of groups of stirring blades (11) are fixedly mounted on the outer wall of the driven shaft (10) along the circumferential direction; a scraper assembly (12) is provided at both upper and lower ends of the stirring blade (11); a driving assembly (13) is fixedly mounted on the outer side of one side of the housing (1), and a control panel (14) is provided on the other side; and vibrators (15) are provided on both sides of the bottom of the stirring barrel (2).
2. The secondary vibration mixing equipment for asphalt pavement paving according to claim 1, characterized in that: The scraper assembly (12) comprises a plurality of fixed rods (121) fixedly mounted on the outer wall of the driven shaft (10) along the circumferential direction; a movable head (122) is provided on the outer sliding sleeve of the fixed rod (121); a movable groove (123) is provided at the end of the fixed rod (121); an integrally connected movable rod (124) is provided on the inner side of the movable head (122); a spring (125) is fixedly connected between the movable rod (124) and the inner wall of the movable groove (123); and a side wall scraper (126) is fixedly connected to one end of the movable head (122) away from the fixed rod.
3. The secondary vibration mixing equipment for asphalt pavement paving according to claim 1, characterized in that: A feed port (16) is fixedly mounted on the upper end of an outer wall of one side of the outer shell (1), the lower end of the feed port (16) passes through the outer shell (1) and is connected to the mixing barrel (2), and a discharge port (17) is provided at the bottom of the mixing barrel (2).
4. The secondary vibration mixing equipment for asphalt pavement paving according to claim 1, characterized in that: The heating mechanism (3) comprises an electric heating tube (31) and a temperature sensor (32) which are evenly arranged around the outside of the stirring barrel (2); the electric heating tube (31) and the temperature sensor (32) are both electrically connected to the control panel (14).
5. The secondary vibration mixing equipment for asphalt pavement paving according to claim 1, characterized in that: A scraper plate (8) is fixedly mounted on the bottom of the auger (7), and the shape of the scraper plate (8) is compatible with the bottom of the mixing barrel (2).
6. The secondary vibration mixing equipment for asphalt pavement paving according to claim 1, characterized in that: The driving assembly (13) comprises a driving motor (131), the output shaft of the driving motor (131) is fixedly mounted with a rotating shaft (132), the top of the rotating shaft (132) is fixedly mounted with a first belt pulley (133), the top of the stirring main shaft (5) is fixedly mounted with a second belt pulley (134), and the second belt pulley (134) is connected to the first belt pulley (133) via a belt transmission.